.company > div {
    line-height: 30px;
    margin-bottom: 30px;
    font-family: 楷体;
    text-indent: 3em;
}

.product {
    text-align: center;
    /* animation移动的关键字 */
    animation: move 5s linear infinite;
    overflow: hidden;
}

@keyframes move {
    0% {
        margin-left: 0;
    }
    20% {
        margin-left: -200px;
    }
    40% {
        margin-left: -400px;
    }
    60% {
        margin-left: -200px;
    }
    100% {
        margin-left: 0;
    }

}

.overflow-hidden {
    overflow: hidden;
}

.product img {
    width: 150px;
    height: 120px;
}

.product > div {
    margin: 10px;
}